Spanner wrench



Nov. 28, 1961 5. KRON 3,010,347

SPANNER WRENCH 2 Sheets-Sheet 1 Filed March 18, 1 959 JLL INVENTOR. SAUL KRON Nov. 28, 1961 5. KRON 3,01

SPANNER WRENCH Filed March 18, 1959 2 Sheets-Sheet 2 INVENTOR.

SAUL KR N- AUDI/YE) United States Patent Ofice 3,010,347 Patented Nov. 28, 1961 3,010,347 SPANNER WRENCH Saul Kron, 29 Morley Lane, Bloomfield, NJ. Filed Mar. 18, 1959, Ser. No. 800,167 Claims. (Cl. 81-90) The present invention relates to a spanner wrench, and it particularly relates to a novel spanner wrench construction.

It is among the objects of the present invention to provide a novel spanner wrench construction which may be readily utilized and which at the same time will be of simple and durable construction.

Another object is to provide a novel, readily adjustable spanner wrench construction which is readily adapted to utilization upon various types of annular nuts and rings and which may be adjusted readily to achieve the desired Width of engagement elements for turning or tightening or loosening the particular annular threaded device.

In accomplishing the above objects according to one embodiment of the present invention, an adjustable jaw base may be employed having a recess, the division of which may be changed to accommodate various sizes of shapes of nuts or bolts.

Still further objects and advantages will appear in the more detailed description set forth below, it being understood, however, that this more detailed description is given by way of illustration and explanation only and not by way of limitation, since various changes therein may be made by those skilled in the art without departing from the scope and spirit of the present invention.

In accomplishing the above objects it has been found most satisfactory to provide an adjustable jawed member carrying extension rods or extension elements which may be readily lodged or engaged in said adjustable jaws.

In the preferred form of the invention a base wrench element is employed, from which the extension elements extend, and the extension elements are removably mounted in the ends of the jaws, which desirably are flatted on the side away from the screw adjustment.

The extension elements may take diiferent forms and they may extend outwardly parallel to each other and parallel to the plane of the base structure. The terminal portions of the elements may extend at right angles to the plane of the base structure.

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views:

FIG. 1 is a plan view showing the wrench structure carrying the extension elements for adjusting the annulus, whether it be a nut threaded cylinder or other device having a central element extending therethrough.

FIG. 2 is a side elevational view taken from the line 2-2 of FIG. 1.

FIG. 3 is an end view of the end of the extension element taken from the line 33 of FIG. 2.

FIG. 4 is a transverse sectional view upon the line 44 of FIG. 1.

FIG. 5 is a top plan view showing the manner in which the extension elements may be applied to an annulus.

FIG. 6 is a side elevational view similar to FIG. 2, showing a modified form of extension element.

FIG. 7 is a side elevational view of an alternative form of the invention.

FIG. 8 is a side elevational view of the form of FIG. 7 with the extension elements turned at an angle of outwardly from one another from that shown in FIG. 7.

FIG. 9 is a side elevational view taken from the line 9-9 of FIG. 8.

FIG. 10 is a fragmentary diagrammatic view partly in section showing the manner in which the tool of FIGS. 7 to 9 may be utilized.

Referring to FIG. 1, there is shown a wrench A having an adjustable jaw B, with a manually actuated screw adjustment C and a handle D.

The ends of the fixed jaw E and the movable jaw B carry the extension elements F and G, which have right angular end portions H, which may be used to engage and turn an annular structure I.

The elements H in FIG. 2 have their end portions extending downwardly but it is obvious that they may be turned to a position at an angle of 90 or from the position shown in FIGS. 1 and 2.

Referring particularly to FIG. 1, the handle D is shown as being curved with an opening 10, but it may be of other shapes and forms, and the threaded adjustment C consists of a manually adjustable member 11 which engages a screw or movable element 12 associated with the movable jaw B, which may be moved in either direction, as indicated by the double headed arrow 13.

The jaws E and B are flatted, as indicated at 14 and 15, and bored, as indicated at 16 (see FIGS. 2 and 3) so as to receive the base 17 of the inner portions 18 and 19 of the extension elements F and G.

The extension elements are desirably of rectangular or hexagonal cross section, as indicated in FIGS. 3 and 4,

so that the set screws 20 and 21, which may be of the Allen head type, may be readily lodged against a flat face and prevent the extension element F from turning.

It will be noted that the base portions may be equilateral hexagon structures, as shown in FIG. 4 at 17, whereas in the end portion, as indicated at H in FIGS. 2 and 3 the sides may be so flatted, as indicated at 22 and 23, that a'substantially rectangular cross section is achieved.

This cross section is desirable, since it will enable a higher torque to be applied to either slots or rod openings, such as indicated at 24, in the annular structure I which is to be rotated.

In the alternative embodiment as shown in FIG. 6, the fixed jaw B may be of the same type as shown in 'FIG. 1, but in this case the extensions K are of different con- 'struction.

The root portions 26 of the members K are engaged, as indicated in FIGS. 2 and 4, in openings in the fiat face of the jaw, and then they extend by means of the right angular bend to one side, as shown in FIG. 6, where their end portions may be used to engage slots or openings, such as 24, on an annular threaded member to be rotated or tightened or loosened, as the case may be.

It is thus apparent that the present invention has provided a simple yet readily applicable spanner wrench construction capable of ready adjustment and of durable construction, and which may be adjusted so as to take a wide variety of extension elements such as indicated at F, G and K.

The arrangement shown in FIGS. 7 and 10 represents an alternative to that shown in FIGS. 1 to 5, correspondingly functioning parts being indicated by the same letters and numerals primed.

The form of extension elements shown in FIGS. 7 and 10 are of the same general shape as those shown in FIG. 6.

It will be noted that the outstanding rectangular end elements H may be inserted in a sleeve or collar J in 0 the recesses 24 as illustrated in FIG. 10.

These extensions F and G may be rotated to difierent 3 positions with the tips H away from one another as shown in FIGS. 8 and 10 or with the tips parallel to each other in FIG. 7.

It is also possible to rotate the tips H toward each other so they can be used on the outside of internally threaded collars such as J.

The extensions may be rotated in any direction to fit the situation. The shape and the size of the extensions may be varied to the particular situation encountered.

The shape of these elements and their angularity may be widely varied to give the desired effect.

While there has been herein described a preferred form of the invention, it should be understood that the same may be altered in details and in relative arrangement of parts within the scope of the appended claims.

.' Having now particularly described and ascertained the nature of the invention, and in what manner the same is to be performed,

What is claimed is:

1. A spanner wrench comprising a handle member,

adjustable jaw members on said handle member and extension'rods carried by said jaw members, said wrench having a longitudinal axis parallel to the gripping faces of the jaw members and a manually actuated screw member between the handle member and the jaw members, said screw member having an axis transverse to said longituthereof, and the ends of the extension rods away from the jaw members being turned at right angles to the longitudinal axis.

2. A spanner wrench comprising a handle member, adjustable jawmembers on said handle member and extension members carried by said jaw members, said jaw members including a fixed member and a movable member, and said extension members comprising rods of polygonal cross section extending from the ends of said jaw members away from said handle, said wrench having a longitudinal axis parallel to the gripping faces of the jaw members and a manually actuated screw member between the handle member and the jaw members,

said screw member having an axis transverse to said longitudinal axis, said jaw members being in transverse spaced relationship to the longitudinal extent of the handle member, andthe portions of the, rods carried by said jaw members being parallel to each other and parallel to the longitudinal axis and being provided with set screw adjustment means in the jaw members permitting adjustable rotation and extension and removal and replacement thereof, and the ends of the extension rods away from the jaw members being turned at right angles to the longitudinal axis.

3. A spanner wrench comprising a handle member, adjustable jaw members on said handle member and extension rods carried by said jaw members, said extension rods having a hexagonal cross section at their root portions and being of substantially rectangular cross section away from their root portions, said wrench having a longitudinal axis parallel to the gripping faces of the jaw members and a manually actuated screw member between thehandle member and the jaw members, said screen member having an axis transverse to said longitudinal axis, said jaw members being in transverse spaced relationship to the longitudinal extent of the handle member, and the portions of the rods carried by said jaw members being parallel to each other and parallel to the longitudinal axis and being provided with set screw adjustment means in thejaw members permitting adjustable rotation and extension and removal and replacement thereof, and the ends of the extension rods away from the jaw members being turned at right angles to the l0n gitudinal axis.

4. A spanner wrench having a longitudinal axis and separable jaws, a manually actuated screw member for closing or separating said jaws, a handle extending transversely to said screw member and away from said jaws, said jaws being in transverse spaced relationship to the longitudinal extent of the handle member, the ends of the jaws on the sides away from the handle being flatted transversely to said longitudinal axis and being provided with recesses parallel to said axis, and angular right angle bend extensions having root endvportions fitted in and clamped in said recesses and having opposite end portions at right angles to said longitudinal axis and having intervening right angular bent portions.

5. The wrench of claim 4, said jaws having set screws extending transversely to said axis to permit rotational and longitudinal adjustment of the root end portions and said root endv portions being of hexagonal cross section to provide six alternate faces for contact with the set screw and the opposite end portions being squared for reception in a rotatable circular member.

References Cited in the file of this patent UNITED STATES PATENTS 674,778 Lagerbeck May 21, 1901 2 ,386,254 Meyer Oct. 9 1945 2,480,565 Frank et a1; Aug. 30, 1949 FOREIGN PATENTS I 449,929 France Jan. 16, 1913 

